const {createFactory, createClass, DOM: { label, input, button }} = React;

​

const tester = createFactory(createClass({

  render() {

      return label({}

               ,`Name: ${this.props.name}`

               ,input({value: this.props.name})

               ,button({onClick: this.changeName}, "Change")

             )

  },

  changeName() {

    this.setProps({name: "Wilma"})

  }

}) )

​

React.render(tester({name: "Fred"}), document.querySelector('body'))